<template>
  <div class="top-right-btn">
    <el-row>
      <el-tooltip
        class="item"
        effect="dark"
        :content="showSearch ? '隐藏搜索' : '显示搜索'"
        placement="top"
      >
        <el-button
          size="mini"
          circle
          icon="el-icon-search"
          @click="toggleSearch()"
        />
      </el-tooltip>
      <el-tooltip
        class="item"
        effect="dark"
        content="刷新"
        placement="top"
      >
        <el-button
          size="mini"
          circle
          icon="el-icon-refresh"
          @click="refresh()"
        />
      </el-tooltip>
      <!-- 穿梭框 改成 popover checkbox -->
      <!-- <el-tooltip
        class="item"
        effect="dark"
        content="显隐列"
        placement="top"
        v-if="columns"
      >
        <el-button
          size="mini"
          circle
          icon="el-icon-menu"
          @click="showColumn()"
        />
      </el-tooltip> -->
      <el-tooltip
        class="item"
        effect="dark"
        content="显隐列"
        placement="top"
      >
        <el-popover
          placement="right"
          width="150"
          trigger="click"
        >
          <el-checkbox-group
            v-model="value"
            @change="handleCheckedChange"
          >
            <el-checkbox
              v-for="column in columns"
              :key="column.value"
              :label="column.value"
              name="columns"
            >
              {{ column.label }}
            </el-checkbox>
          </el-checkbox-group>

          <el-button
            v-if="columns"
            slot="reference"
            style="margin-left: 10px"
            size="mini"
            circle
            icon="el-icon-menu"
          />

        </el-popover>
      </el-tooltip>
    </el-row>

    <el-dialog
      :title="title"
      :visible.sync="open"
      append-to-body
    >
      <el-transfer
        v-model="value"
        :titles="['显示', '隐藏']"
        :data="columns"
        @change="dataChange"
      />
    </el-dialog>

  </div>
</template>
<script>
export default {
  name: "RightToolbar",
  props: {
    showSearch: {
      type: Boolean,
      default: true,
    },
    columns: {
      type: Array,
    },
    defaultHideColumns: {
      type: Array,
      default: () => [],
    },
  },
  data() {
    return {
      gridData: [],
      // 显隐数据
      value: [],
      // 弹出层标题
      title: "显示/隐藏",
      // 是否显示弹出层
      open: false,
    };
  },
  created() {
    // 设置默认不展示值
    const _that = this;
    let temp = [];
    temp = _that.defaultHideColumns;
    _that.value = temp;
    _that.handleCheckedChange(_that.value);
  },
  methods: {
    // 搜索
    toggleSearch() {
      this.$emit("update:showSearch", !this.showSearch);
    },
    // 刷新
    refresh() {
      this.$emit("queryTable");
    },
    // 右侧列表元素变化
    dataChange(data) {
      for (var item in this.columns) {
        const key = this.columns[item].value;
        this.columns[item].visible = !data.includes(key);
      }
    },
    handleCheckedChange(data) {
      for (var item in this.columns) {
        const key = this.columns[item].value;
        this.columns[item].visible = !data.includes(key);
      }
    },
    // 打开显隐列dialog
    showColumn() {
      this.open = true;
    },
  },
};
</script>
<style lang="scss" scoped>
::v-deep .el-transfer__button {
  border-radius: 50%;
  padding: 12px;
  display: block;
  margin-left: 0px;
}
::v-deep .el-transfer__button:first-child {
  margin-bottom: 10px;
}
</style>
